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The DEM Membrane Bioreactor (MBR) process is a process that
combines biological treatment with membrane filtration.
Degradable pollutants are degraded by bacteria and microorganisms,
and after such biological treatment, the water in the activated
sludge is separated by the filtration action of Toray membranes.
DEM140-50S flat membrane characteristics
Highly resistant to contamination
Compared to hollow fiber membranes, flat plate membranes have
superior contamination resistance.
Simpler system configuration and operation
Flat plate membranes operate stably for long periods without the
need for a backwash system.
Easy Maintenance
Flat membranes are designed for easy maintenance and cost savings.
Chemical Cleaning of Membrane Elements:
(1) The chemicals used for cleaning may contain substances that may
cause harm if they come into contact with the human body. When
using chemicals, be sure to wear protective equipment such as
eyeglasses and gloves with extreme caution. Be sure to check the
contents of the MSDS.
(2) If the chemical comes into contact with skin or clothing, rinse
immediately with plenty of water.
(3) If the chemical gets into your eyes, immediately flush with
plenty of water and seek medical attention.
(4) When performing chemical cleaning, stop the cleaning operation
as soon as you notice any abnormalities.
(5) Do not use a dosing pump to inject chemicals directly into the
membrane element, as this may cause damage to the membrane element
due to internal pressure rise. The agent must be injected by
gravity or at a pressure of 10kPa or less.
(6) When using a dosing pump, make sure that the membrane module is
completely submerged in water and that the distance between the
liquid level and the top of the membrane module is more than 500mm.
(7) Chemicals should be kept in a cool place, avoiding direct
sunlight.
(8) To avoid corrosion, please choose storage tanks made of
appropriate materials to hold the chemicals according to the nature
of different chemicals.
(9) Sodium hypochlorite should not be mixed with heavy metals or
acids. Please pay special attention to the fact that when it is
mixed with acid, toxic chlorine gas will be produced.
(10) Do not mix oxalic or citric acid with sodium hypochlorite.
They produce toxic chlorine gas when mixed.
(11) Please stop aeration flushing during chemical cleaning,
otherwise the membrane element may be damaged.
Application Areas:
1,Municipal sewage treatment and reuse.
2,Industrial wastewater treatment and reuse.
3,Existing sewage treatment plant renovation.